Watchman&#39;s time-detector.



E. E. WADSWORTH.

WATCHMANS TIME DETECTOR.

APPLICATION FILED ma. n. 1915.

Patented May 25, 1915.

Inventar.' ZZMadworh 'gef THE MORRIS PETERS C0., PHOTOLITHO.. WASHINGTCN, D,

rrnD STATES PATENT nnnsrns n. wnnswoa'rn, OFBOSTON, MASSACHUSETTS, assrenoa TO anarco ivmenn'rocrocx conrnny, Orsosrolv, rIAssAcHusnrrs, A CORPORATION or MAINE.

watchman visitsfthe n predetermined locali- Y ties which hev is required to .cover in his beat.

c. Theninvention is illustrated inthe accom- VVpanying kdrawings as employed in connection with a device of this character which is disclosed in. Letters Patent No. 857,985,

y granted June 25, 1907,y to G. B. Fessenden.

` l,For the purpose of insuringA detection of anyattempt tomake the watchmans record in anyA manner other than the prescribed method, several devices` have heretofore been produced, which, when the lid or cover ofthe casing of the device is opened or closed, will cause the cutting of a slit in a marginal portion` of the dial. of doing thisV is so, well understood that further explanation thereof is` unnecessary.

The object of my present invention is to providea kcombined tell-tale and lock, the

device being solconstructed that whenever Vthe casing is unlockedpreparatory to opening, the tell-tale will be .released so that the ensuing lift of the cover will leave a mark, such as a marginal slitin the paper dial employed.

With these and further objects in view,

my invention consists in the` improvements which I shall now proceed to describe and claim.` p l Of the accompanying drawings: Figurek 1 is a plan view of a watch-mans clock or timep detector having my` improvements, a portion p of the vcover beingl broken away. Fig. 2 is `an elevation -of a portion ofthe casing,`

showing my improvements by dottedlines.

-Fig. 3 represents a section Online 3-3 of Fig. `2.` Fig. 4 isan elevation of the two ymembers of my combined tell-tale? and lock.

' Similar reference characters indicate simi# larparts in all of the views.

The case, which, of course, contains the usual kind vof clock orftime movementem ployed in devices of this character, has a Specification of Letters Patent. b

The object wATcHMnNs TIME-DETECTOR.

Patented May 25, `1915.

' Application fried February 11, 19115; serial No. 7,2531. e

i cover or lid hinged thereto, as at 12. `The time-operated stem 13 of the clock movement has any suitable or preferred means for removably. securing thereto a paper dialr 14. The usual top plate of the watch or clock movement lcasing is indicated at 15, 16 being a guide or stripper, betweenwhich and the plate 15 vthe dial 14 is rotated bythe clock movement.

Above the'slot in the casinglO for the entrance of the key which is to unlock or lock the casing, the plate 15 is formed with a marginal slot 18.;` This slot is bridged by" a holder or stripper 19, which is here shown as a `length of wire bent as indicated in the drawings and secured in place by screws 2O;

A tongue 21, having a base 22 which is se- The stripper 16 prefer- Y ably has a tip l17 formed as a pointer.

cured to the inside of the cover or lid, has i its lower end extending laterally to provide a shoulder 23 which acts as a keeper for the wardly through the4 dial. When the marker `moves downwardly, the dial is first slightly Y flexed until arrested by the plate 15, the

sides of the slot 18 holding the lpaperwhile the marker passesy through. The knife is thus adapted to cut in two directions, a

record being made of each opening and closing of the door;

The lkey-operated locking mechanism inl cludes a bolt 25 formed as a portion of a slide 26, having a notch or recess 27 to be engaged bythe usual portion of a key employed for locking and unlocking the casing. The slide is formed with two slots 28 mounted on pins 29. Fig.` 2 illustrates by full and dotted lines the ,two positions to which the` slide and the locking bolt 25 may be moved by a suitable key inserted through the keyhole represented in Fig. 2.y When the slide is moved vto the dotted line position, the

. 1. A device rof the, ci.

nite point, and the stripper 16 is so mounted Y or secured in the casing that itsV pointer 1'?.k

is located at'sucli 'distance' fromvr the radial line of the dial which will be slitted, as to measure three hours of time.

de vicewhasv been'tamperedwit n, that the cover; has been opened elsev thanitheemploy'er;

I claim:-

nete: described,y comprising a twopart casing, a dial-rotating mechanism contalneflftherein", one of the Vparts 'of thev casing having. faf projection. toI

arkjg-thel dial,` and.- kar .key-operated member carriedby theLfother partei-ther casing and.

This is indi cated by the spacel of thefheavierfradial linesNIA in Fig.v 1. .The object of this specialspace of the members 16 and 24: is that when' the employer places a new dial in thecasing, he"y so locates *the dialrotatfively4 that the time when he does-it will ble-indicated the`v pointer 17. He immediately closes and locks 1 the cover, knowing that his'sodoirig will slit the margin of thedial just: threeh'oursaway..v Later when he 'opens the vcasing to removeY the dial which hasbeenin= placegduringthet use of the device by the watchman, vhis open;` Y ing of the-cover` to, removethe' record makes, anotherslit three hours-away from-i the time*Y when he'opens the lid. If no-w, thereoord ,shows any other' slits than these' two,or`

shows .any slits other than thf'' employer,v

knows should exist, it isef.ffi-flence that the closed position;

saidtongue having -a dialmutilator, a dialrotating'mechanismin the main portion of 'the casing, and' a key-operated' member carried by said main portion adapted to engage a portion of said tongue to lock thecover in f 3. A watchmans clock'comprising a case `having' a hinged cover,a time-operateddial'l 'inthe'V case, vardial.marker-carried. by the 'cover` andghavingua shoulder, and a' key-0p ated by'` a key, saitlfslideAv havingy a portion formedA tov crossover a port-ionA ofY thev tongue adjacent to thecuttingf portion, 'toflioldV the.

, cover locked.`r

In vtestimony whereof. have athigedmyV signature,inpresence of two witnesses..

. ERASTUSl El.. VADSIWORTH.. Witnesses: Y

,A .l/VL; HARRISON, `fI-IUBERTVV. RUSSELL.

' Copies of this patent may be obtained foriive 'cents each, lyfadrvlressilng `theiComnikssionerotitatentsh f l WashingtonJQiG. 

